Finding the Fourth Proportional to 866,577.36, 1,299,312.09 and 416,402.40
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Solution
The fourth proportional to 866,577.36, 1,299,312.09 and 416,402.40 is: 624,337.42
Step by Step Solution
- Step 1: Write the proportion equation
866,577.36 : 1,299,312.09 = 416,402.40 : x - Step 2: Convert to fraction form
866,577.36/1,299,312.09 = 416,402.40/x - Step 3: Cross multiply
866,577.36x = 1,299,312.09 × 416,402.40 - Step 4: Simplify right side
866,577.36x = 541,036,672,625.02 - Step 5: Solve for x
x = 541,036,672,625.02/866,577.36 - Step 6: Final answer
x = 624,337.42
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.